57791457 has 12 divisors (see below), whose sum is σ = 83553444. Its totient is φ = 38492160.

The previous prime is 57791431. The next prime is 57791507. The reversal of 57791457 is 75419775.

It can be written as a sum of positive squares in 2 ways, for example, as 46662561 + 11128896 = 6831^2 + 3336^2 .

It is not a de Polignac number, because 57791457 - 2¹⁰ = 57790433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57791417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10657 + ... + 15137.

It is an arithmetic number, because the mean of its divisors is an integer number (6962787).

Almost surely, 2^57791457 is an apocalyptic number.

It is an amenable number.

57791457 is a deficient number, since it is larger than the sum of its proper divisors (25761987).

57791457 is a wasteful number, since it uses less digits than its factorization.

57791457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920 (or 5917 counting only the distinct ones).

The product of its digits is 308700, while the sum is 45.

The square root of 57791457 is about 7602.0692577745. The cubic root of 57791457 is about 386.6231734505.

The spelling of 57791457 in words is "fifty-seven million, seven hundred ninety-one thousand, four hundred fifty-seven".